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Trivially reduce [*];f to [*] if f accepts the empty word.

Browse source 
* src/ltlast/multop.cc (instance): Implement the reduction.
* src/ltlast/multop.hh, doc/tl/tl.tex: Document it.
* src/ltltest/equals.test: Test it.
This commit is contained in:
Alexandre Duret-Lutz 2012-04-24 18:36:20 +02:00
parent e06b3b7974
commit 4a775a17a3
4 changed files with 47 additions and 5 deletions
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src/ltlast/multop.hh
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@ -108,6 +108,8 @@ namespace spot
/// - OrRat(Exps1...,1[*],Exps2...) = 1[*]
/// - Concat(Exps1...,0,Exps2...) = 0
/// - Concat(Exps1...,[*0],Exps2...) = Concat(Exps1...,Exps2...)
/// - Concat(Exps1...,FExps2...,1[*],FExps3...,Exps4) =
/// Concat(Exps1...,1[*],Exps4) if FExps2...FExps3... all accept [*0]
/// - Concat(Exp) = Exp
/// - Fusion(Exps1...1,Exps2...) = Fusion(Exps1...,Exps2...)
/// if at least one exp reject [*0]